Acid soil conditioner preparation and application method

A technology of acidic soil and improver, applied in fertilization methods, applications, fertilization devices, etc., can solve the problems of lack of effective nutrients, etc., to achieve resource utilization of waste, great social benefits, enhanced nutrient supply intensity and balanced supply of nutrients The effect of the ability

Active Publication Date: 2015-09-23
SHANXI AGRI UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Another serious problem of acidic soil is the lack of effective nutrients, and there are many types of nutrients involved. For example, acidic soils are gene...

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] The acidic soil conditioner with nutrients is prepared by using the remaining waste residues produced by chemical fertilizer industry such as calcium nitrate, calcium ammonium nitrate and magnesium nitrate. Dry the waste calcium mud and magnesium mud produced by the chemical fertilizer industry separately to reduce the water content to 13%-15%, then crush them to below 10 mesh, and then weigh 15 parts of the dried calcium mud, 20 parts of magnesium mud, and 10 parts of urea containing N 46%, containing N 12% and containing P 2 o 5 5 parts of 52% monoammonium phosphate, containing K 2 O 2 parts of 52% potassium sulfate, mix all the raw materials evenly, granulate, dry to 10% -12% water content, and pack to obtain the finished product. The product N, P 2 o 5 、K 2 The O contents were 10.1%, 6.0%, and 2.4%, respectively.

Embodiment 2

[0024] The acidic soil conditioner with nutrients is prepared by using the remaining waste residues produced by chemical fertilizer industry such as calcium nitrate, calcium ammonium nitrate and magnesium nitrate. Dry the waste calcium mud and magnesium mud produced by the chemical fertilizer industry separately to reduce the water content to 13%-15%, then crush them to below 10 mesh, and then weigh 25 parts of the dried calcium mud, 30 parts of magnesium mud, and 15 parts of urea containing N 46%, containing N 12% and containing P 2 o 5 8 parts of 52% monoammonium phosphate, containing K 2 O 3 parts of 52% potassium sulfate, mix all the raw materials evenly, granulate, dry to 10% -12% water content, and pack to obtain the finished product. The product N, P 2 o 5 、K 2 The O contents were 9.9%, 6.2%, and 2.3%, respectively.

Embodiment 3

[0026] The acidic soil conditioner with nutrients is prepared by using the remaining waste residues produced by chemical fertilizer industry such as calcium nitrate, calcium ammonium nitrate and magnesium nitrate. Dry the waste calcium mud and magnesium mud produced by the chemical fertilizer industry separately to reduce the water content to 13%-15%, then crush them to below 10 mesh, and then weigh 20 parts of the dried calcium mud, 25 parts of magnesium mud, and 12 parts of urea containing N 46%, containing N 12% and containing P 2 o 5 6 parts of 52% monoammonium phosphate, containing K 2 O 2.5 parts of 52% potassium sulfate, mix all the raw materials evenly, granulate, dry to 10% -12% water content, and pack to obtain the finished product. The product N, P 2 o 5 、K 2 The O contents were 9.6%, 5.8%, and 2.4%, respectively.

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PUM

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Abstract

The invention discloses an acid soil conditioner preparation method. The acid soil conditioner preparation method comprises the steps that 1, waste materials including calcium mud and magnesium mud generated in the chemical fertilizer industry are dried separately to enable the water content of the waste materials to be decreased to 13 percent-15 percent, and then the waste materials are smashed to be below 10 mesh; 2, by mass, 15-25 parts of the calcium mud and 20-30 parts of the magnesium mud prepared in the step 1, 10-15 parts of commercial urea, five-eight parts of commercial monoammonium phosphate and two-three parts of commercial potassium sulfate are weighed out, all the raw materials are mixed to be uniform, then granulation is performed, the particles are dried to enable the water content to be 10 percent-12 percent, the particles are packaged, and finished products are prepared. According to an acid soil conditioner application method, farming after fertilizer broadcasting before seeding is adopted, the products are uniformly mixed with soil as far as possible, and the application rate is determined according to the pH value of the acid soil, and when the pH value of the acid soil is 5-6.5, the application rate per hectare per year is suggested to be 300 kg-600 kg; when the pH value of the acid soil is 4.5-5, the application rate per hectare per year is suggested to be 600 kg-900 kg; when the pH value of the acid soil is smaller than 4.5, the application rate per hectare per year is suggested to be 900 kg-1,200 kg.

Description

technical field [0001] The invention relates to the technical field of solid waste resource utilization and soil fertilization improvement. Background technique [0002] Soil amendment, also known as soil conditioner, is a material used to improve the physical, chemical and biological properties of soil to make it more suitable for plant growth. The main function of the acidic soil amendment is to neutralize the acidity of the soil, thereby improving the bad properties of the acidic soil. [0003] Acidic soil is a general term for soil with low pH value. The acidic soil area has abundant precipitation, strong leaching, a large amount of base ions are leached, and the base saturation is low, while the acidic soil has a high concentration of H + 、A1 3+ , Mn 2+ and Fe 2+ have a direct toxic effect on plants. Another serious problem of acidic soil is the lack of available nutrients, and there are many types of nutrients involved. For example, acidic soils are generally def...

Claims

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Application Information

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IPC IPC(8): C05G3/04A01C21/00C05G3/80
Inventor 卜玉山刘奋武赵和平张吴平蔺向前赵国斌卜斌蔺向光
Owner SHANXI AGRI UNIV
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